Keeping Up With Technology

New-Style Motors on 9-Layer Blown Film Line

From: Plastics Technology
Issue: April 2007

Twenty-fi ve permanent-magnet synchronous torque motors from Siemens power a nine-layer blown film line being built by Macchi in Italy for a customer in Eastern Europe. (Macchi North America recently moved from Guelph, Ont., to Gainesville, Ga.) The new "syntorque" motors are said to offer high torque plus energy savings.

Twenty-fi ve permanent-magnet synchronous torque motors from Siemens power a nine-layer blown film line being built by Macchi in Italy for a customer in Eastern Europe. (Macchi North America recently moved from Guelph, Ont., to Gainesville, Ga.) The new "syntorque" motors are said to offer high torque plus energy savings. They are installed on each of the nine extruders of this film line in a manner that allows the screws to be removed from the back. All downstream nip and winding drums are also driven by syntorque motors-one for the main nip, two for the winding drum, two for gap winding, one for the intermediate nip, and one for the haul off-a total of 16. Earlier this year, Macchi made syntorque motors standard on all winders at the same price as previous DC motors. Macchi says winding is where the motors bring the biggest benefi t both in precision and in energy savings. Macchi has also sold fi ve coex blown film lines in the U.S. with all-syntorque motors. Tel: (888) 762-2244 . www.macchi.it